Diff: main.cpp

Revision:

0:ae927e3c7264

Child:

1:919b214c583c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Dec 24 10:18:37 2013 +0000
@@ -0,0 +1,42 @@
+/*******************************************************************************
+* This program demonstrates how to drive the seven segment display             *
+*                                                                              *
+* Jon Fuge                                                                     *
+* V1.0 24/12/2013 First issue of code                                          *
+*******************************************************************************/
+
+#include "mbed.h"
+#include "SevenSegmentDisplay.h"
+
+uint8_t ui8Tens = 0, ui8Units = 0;
+
+SevenSegmentDisplay segmentled( FADE ); // add + FLASH to flash display, or INSTANT 
+
+void attimeout();            //declare prototype for timeout handler.
+
+Ticker timeout;             //Create an instance of class Ticker called timeout.
+
+int main()
+{
+    //segmentled.FlashRate(100);
+    timeout.attach_us(&attimeout, 500000); // Set up interrupt to call attimeout() every half a second.
+
+    for(;;) {
+    }
+}
+
+void attimeout()              //Timer interrupt routine.
+{
+    ui8Units ^= 0x80;
+    if ((ui8Units & 0x80) == 0) {
+        ui8Units++;             // This means the same as D_7seg[0] = D_7seg[0] + 1; Increment "units"
+        if (ui8Units > 36) {     // "units" digit should be in the range 0 -> 9
+            ui8Units = 0;       // Reset the "units" to 0
+            ui8Tens++;          // Increment "tens" digit
+            if (ui8Tens > 36) {  // "tens" digit should be in the range 0 -> 9
+                ui8Tens = 0;    // Reset the "tens" to 0
+            }
+        }
+    }
+    segmentled.SevenSegmentDisplayChange(ui8Tens, ui8Units); // Keep the displays multiplexed.
+}